Improvement in churns



H. DOOLITTLE.

Churn.

No. 44,614. Patented Oct. l'i, 1864.

Iig.

.N PETERS." Phono-umgmpher. washingwn. n. r;

UNITED STATES PATENT OFFICE.

HARRISON DOOLITTLE, OF AURORA, INDIANA.

IMPROVEMENT IN CH U HNS.

Specification forming part of Letters Patent No. 44,614, dated October 11, 1F64.

To @ZZ whom it may concern/ l Be it known that I, HARRISON DooLI'r'rLE, of Aurora, county of Dearborn, and State of Indiana, have invented a new and useful Improvement in Ohurns; and I do hereby declare the following to bea full, clear, and exact dcseription thereof, reference being had to the accompanying drawings, making a part of this i specification.

Figure l is a longitudinal section of my churn. Fig. 2 is a section parallel to the above, showing my side brake. Fig. 3is a perspecl tive view, exhibiting the wedge-key and other parts.

A is a long rectangular box, semi-octagonal l or semi-cylindrical at the bottom ot'its interior. rl`he dash may consist of a shaft, B, having blades C. One end ofthe shaft B has a square s ieket, b, to receive the square end d of the driving-arbor D. The other end of the shaft B has agudgeon, b', which rests in the rounded bottom of a recess, a, in the end of the box A, which, llarin g upward and undercut in the manner shown, is adapted to receive the tap rin g dovetailed key E. This mode of secur- 1 ing the dash enables its withdrawal,whenever desired, by the simple removal of the tapering dovetailed key E. l

The arbor D occupies a hub, F, which is let into and screwed fast to the end ot' the churnl box in the manner shown.

The outer extremity of the arbor D carries a pinion, G, which, being driven firmly onto i the arbor, holds tightly compressed between it l and the hub F one or more gaskets, H, of l indiarubber or other suitable substance. The i pinion G is driven by a spurwheel, I, which rotates on stud z', which projects from the box, and is operated by means of a handle, I.

A vertical groove, J, in the box-end and a similar one, J in the tapering dovetailed key permit the insertion of a brake, K, immediately over and in the vertical plane ofthe dash. L is a similar brake, which extends horizontally from the box-side, and is secured in place by inserting one end in the cavity M, the other end resting on a ledge or cleat, N, and being further secured by a pin, O, which, being passed through a bracket, I, on the brake, enters the end of the box.

The knob I), by which the lid is handled, is perforated to permit the escape of air.

The dash-blades and brakes are transversed by tlarin g apertures such as seen at Q iu Figs. 2 and 3.

lt will be seen that the dash and the brakes ,can all be removed from the box and replaced with great facility.

The horizontal brake L, in addition to its oftice ot' increasing the agitation of the cream, acts to prevent its escape at the top ot' the box.

l claim herein as new and ot' my inventio:

1. The arrangement of horizontal dash B O b b', drivinglarbor D d, Iiaring undercut and grooved recess a J, and tapering dovetail key E, the whole being arranged and operating substantially as set forth.

2. The arrangement of the removable horizontal brake L l, cavity M, ledge N, and pin O', as described.

In testimony ot' which invention I hereunto set my hand.

HARRISON DOOLITTLE.

Witnesses:

GEO. A. KNIGHT, J AMES H. LAYMAN. 

